<template>
  <view>
    <view class="goods-list">
      <view v-for="(goods,index) in  goodsList" :key="index" @click="gotoDetail(goods)">
        <my-goods :goods="goods"></my-goods>
      </view>
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        // 请求参数对象
            queryObj: {
              // 查询关键词
              query: '',
              // 商品分类Id
              cid: '',
              // 页码值
              pagenum: 1,
              // 每页显示多少条数据
              pagesize: 10
            },
            goodsList:[],
            total:0,
            isLoading:false
      };
    },
    onLoad(options) {
      // 将页面参数转存到 this.queryObj 对象中
      this.queryObj.query = options.query || ''
      this.queryObj.cid = options.cid || ''
      this.getGoodsList()
    },
    methods:{
     async getGoodsList(cb){
       this.isLoading = true
        const { data: res } = await uni.$http.get('/api/public/v1/goods/search',this.queryObj)
        this.isLoading = false
        cb && cb()
        if (res.meta.status !== 200) return uni.$showMsg()
        // 为数据赋值：通过展开运算符的形式，进行新旧数据的拼接
          this.goodsList = [...this.goodsList, ...res.message.goods]
          this.total = res.message.total
      },
      gotoDetail(goods){
        uni.navigateTo({
          url:'/subpkg/goods_detail/goods_detail?goods_id='+goods.goods_id
        })
      }
    },
    onReachBottom() {
      // 判断是否还有下一页数据
        if (this.queryObj.pagenum * this.queryObj.pagesize >= this.total) return uni.$showMsg('数据加载完毕！')
        
      if(this.isLoading) return
      this.queryObj.pagenum += 1;
      this.getGoodsList()
    },
    onPullDownRefresh() {
      this.queryObj.pagenum = 1
      this.total = 0
      this.isLoading = false
      this.goodsList = []
      
      this.getGoodsList(()=> uni.stopPullDownRefresh())
    }
  }
</script>

<style lang="scss">

</style>
